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Annotation of sys/arch/vax/mba/mbavar.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: mbavar.h,v 1.7 2007/05/10 17:59:26 deraadt Exp $      */
        !             2: /*     $NetBSD: mbavar.h,v 1.7 2000/06/04 18:04:39 ragge Exp $ */
        !             3: /*
        !             4:  * Copyright (c) 1994 Ludd, University of Lule}, Sweden
        !             5:  * All rights reserved.
        !             6:  *
        !             7:  * Redistribution and use in source and binary forms, with or without
        !             8:  * modification, are permitted provided that the following conditions
        !             9:  * are met:
        !            10:  * 1. Redistributions of source code must retain the above copyright
        !            11:  *    notice, this list of conditions and the following disclaimer.
        !            12:  * 2. Redistributions in binary form must reproduce the above copyright
        !            13:  *    notice, this list of conditions and the following disclaimer in the
        !            14:  *    documentation and/or other materials provided with the distribution.
        !            15:  * 3. All advertising materials mentioning features or use of this software
        !            16:  *    must display the following acknowledgement:
        !            17:  *      This product includes software developed at Ludd, University of Lule}.
        !            18:  * 4. The name of the author may not be used to endorse or promote products
        !            19:  *    derived from this software without specific prior written permission
        !            20:  *
        !            21:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
        !            22:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
        !            23:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
        !            24:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
        !            25:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
        !            26:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
        !            27:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
        !            28:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
        !            29:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
        !            30:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
        !            31:  */
        !            32:
        !            33: #include <sys/device.h>
        !            34: #include <machine/scb.h>
        !            35:
        !            36: #define MBCR_INIT      1
        !            37: #define        MBCR_IE         (1<<2)
        !            38: #define        MBDS_DPR        (1<<8)
        !            39: #define        MBSR_NED        (1<<18)
        !            40: #define        MBDT_MOH        (1<<13)
        !            41: #define        MBDT_TYPE       511
        !            42: #define MBDT_TAP       (1<<14)
        !            43:
        !            44: #define        CLOSED          0
        !            45: #define        WANTOPEN        1
        !            46: #define        RDLABEL         2
        !            47: #define        OPEN            3
        !            48: #define        OPENRAW         4
        !            49:
        !            50: #define        MAXMBADEV       8       /* Max units per MBA */
        !            51:
        !            52: /*
        !            53:  * Devices that have different device drivers.
        !            54:  */
        !            55: enum   mb_devices {
        !            56:        MB_RP,  /* RM/RP disk */
        !            57:        MB_TU,  /* TM03 based tape, ex. TU45 or TU77 */
        !            58:        MB_MT   /* TU78 tape */
        !            59: };
        !            60:
        !            61: /*
        !            62:  * Current state of the adapter.
        !            63:  */
        !            64: enum    sc_state {
        !            65:        SC_AUTOCONF,
        !            66:        SC_ACTIVE,
        !            67:        SC_IDLE
        !            68: };
        !            69:
        !            70: /*
        !            71:  * Return value after a finished data transfer, from device driver.
        !            72:  */
        !            73: enum   xfer_action {
        !            74:        XFER_RESTART,
        !            75:        XFER_FINISH
        !            76: };
        !            77:
        !            78: /*
        !            79:  * Info passed do unit device driver during autoconfig.
        !            80:  */
        !            81: struct mba_attach_args {
        !            82:        int     ma_unit;
        !            83:         int    ma_type;
        !            84:        char    *ma_name;
        !            85:        enum    mb_devices ma_devtyp;
        !            86:        bus_space_tag_t ma_iot;
        !            87:        bus_space_handle_t ma_ioh;
        !            88: };
        !            89:
        !            90: /*
        !            91:  * Common struct used to communicate between the mba device driver
        !            92:  * and the unit device driver.
        !            93:  */
        !            94: struct mba_device {
        !            95:        struct  mba_device *md_back;    /* linked list of runnable devices */
        !            96:            /* Start routine to be called by mbastart. */
        !            97:        void    (*md_start)(struct mba_device *);
        !            98:            /* Routine to be called after attn intr */
        !            99:        int     (*md_attn)(struct mba_device *);
        !           100:            /* Call after xfer finish */
        !           101:        enum    xfer_action (*md_finish)(struct mba_device *, int, int *);
        !           102:        void    *md_softc;      /* Backpointer to this units softc. */
        !           103:        struct  mba_softc *md_mba;
        !           104:        struct  buf_queue md_q; /* queue of I/O requests */
        !           105: };
        !           106:
        !           107: struct mba_softc {
        !           108:        struct  device sc_dev;
        !           109:        bus_space_tag_t sc_iot;
        !           110:        bus_space_handle_t sc_ioh;
        !           111:        struct  mba_device *sc_first, *sc_last;
        !           112:        enum    sc_state sc_state;
        !           113:        struct  mba_device *sc_md[MAXMBADEV];
        !           114: };
        !           115:
        !           116: struct  mbaunit {
        !           117:        int     nr;
        !           118:        char    *name;
        !           119:        enum    mb_devices devtyp;
        !           120: };
        !           121:
        !           122: /* Common prototypes */
        !           123: void   mbaqueue(struct mba_device *);
        !           124: